Compact, ultra-broadband plasmonic grating couplers.

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ID: 86738
2019
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Abstract
We demonstrate all-metallic grating couplers that enable vertical, compact and broadband fiber-coupling. The grating couplers are based on a metal layer and directly convert a vertical fiber mode into surface plasmon polaritons (SPPs). In combination with a focusing arrangement, the grating couplers require only a small footprint of 13.5 × 12 µm. We characterize the grating couplers with both periodic and apodized gratings and experimentally show a 1-dB bandwidth of 115 nm with a coupling efficiency of 2.9 dB.
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ayata2019compactoptics Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Ayata, Masafumi;Fedoryshyn, Yuriy;Koch, Ueli;Leuthold, Juerg;
Journal Optics express
Year 2019
DOI
10.1364/OE.27.029719
URL
Keywords
plasmonic sensors nanohole arrays plasmon rulers point-of-care diagnosis protein biomarkers

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